Centrifugal separator.



T-ATENTED DEC. 12, 1905.

' J. J. BERRIGAN.- OENTRIPUGAL SEPARATOR.

APPLICATION FILED MAR.1,1904.

2 SHEETfi -SHEET 1.

INVENTOH Jib ATTORNEY WITNESSES:

PATENTED DEC. 12, 1905. J. J. BERRIGAN.

CENTRIPUGAL SEPARATOR.

APPLIGATION FILED MAR.1,1904.

. 2 SHEETS-SHEET 2.

INVENTOR m0 EY cumferential wall.

' STATES PATENT ()FFICE.

JoHN JOSEPH BERRIGAN, OF EAST ORANGE, NEW JERSEY, AssIeNoE TO FRANCIS J.AREND, OF NEW YORK, N. Y., AND JOHN BERNSTROM, OF

STOCKHOLM, SWEDEN.

CENTRIFUGAL SEPARATOR.

No.'s07,055.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed March 1,1904. Serial NO. 196,057.

To aZl whom, it ntay concern:

Be it known that I, JOHN JosEPH BERRI- GAN, of East Orange, Essexcounty, New J ersey, have invented anew and useful Improvement inCentrifugal Separators, of which the following is a specification.

In my pending application Serial No. 193,147, filed February 11, 1904, Ihave described and claimed a machine for centrifugally separating solidsand liquids which includes a rotary conical horizontal vessel whereinthe comminuted materials to be separated are introduced at one end andby reason of the rotation of the vessel caused to form aring around itsinner periphery. From this ring the liquid is decanted through an outletplaced between the circumferential wall of the vessel and its axis ofrotation, while the solids by means of a suitable conveyer aretransported from the inlet to the outlet at the opposite end of thevessel, where they escape.

My present invention relates to a specific arrangement of theliquid-outlet in said vessel, whereby said outlet is in the form of aconduit extending at an angle to the axis of rotation instead of in adirection parallel to it, so that the centrifugal force of rotationdirectly aids the escape of the liquid from the portion of the ringnearest to the axis of rotation. The main direction of said conduit ispreferably radial to said axis.

In the accompanying drawings, Figure 1 is a longitudinal section of theconical rotary vessel on the line :0 w of Fig. 2, showing theliquid-escape conduit formed in the large head thereof. Fig. 2 is atransverse section on the line 1 1 of Fig. 1, taken in the direction ofthe arrow 2. Fig. 3 is a section similar to Fig. 1 on the line y 2 ofFig. 4, showing the conduit arranged partly in an annular lining placedwithin the vessel and immediately adjacent to the large head and partlyin the cir- Fig. 4 is a transverse sectionon the line 3 3 of Fig. 3,taken in the direction of the arrow 4.

Similar letters of reference indicate like parts.

A is a conical separating vessel horizontally disposed and rotated onitslongitudinal axis by any suitable means. B is a spiral conveyertherein also rotated by any suitable means and constructed to movethe-solids which enter with the liquid at the opening C in the largehead D of the vessel, asindicated by arrow 5, to the outlet E at thesmall end thereof, where said solids escape, as indicated by arrow 6.The liquid-outlet conduit F is formed in the head D and opens into thevessel at such desired distance from thecircumference of said head aswill enable it to draw off the liquid G by decantation from the ring Hof liquid and solids produced centrifugally by the rotation of vessel A.The general direction of said conduit is radial to the axis of rotationof the vessel, and the liquid escapes from it as indicated by the arrow7.

Instead of forming theconduit in the head D, I may arrange it in anannular liningpiece I, Fig. 3, which fits in the angle between the headD and the wall of the vessel A and preferably has its exposed faceconcave, as shown at J. Said conduit then communicates with an openingK, which forms an extension of it through the vessel-wall. An advantageof this annular lining-piece is that it fills the angle between head Dand vessel-wall, and so prevents the solid material from accumulatingthere, as in a pocket, if not entirely removed by the conveyer.

I claim- 1. In a machine for separating solids and liquids, a rotaryseparating vessel, a liquidescape conduit opening into the interior ofsaid vessel between its circumferential wall and axis of rotation andextending at an angle to the axis of said vessel, and means forconveying solid material in a direction longitudinally of said vesselfrom inlet to outlet.

2. In a machine for separating solids and liquids, a rotary separatingvessel, a liquid escape conduit opening into the interior of said vesselbetween its circumferential Wall and axis of rotation and extendingthrough a wall of said vessel at an angle to the axis of rotationthereof, and means for conveying solid material in a directionlongitudinally of said vessel from inlet to outlet.

3. In a machine for separating solids and liquids, a conical rotaryseparating vessel, a head for the large end thereof, having aninlet-opening, an annular lining-piece disposed in the angle betweensaid head and the circumferential Wall of said vessel, a liquid-escapeconduit extending through said liningpiece and said wall, and means forconveyand means for conveying solid material in a directionlongitudinally said vessel from inlet to outlet.

In testimony whereof I have signed my name to this specification in thepresence of I 5 tWo subscribing witnesses.

, JOHN JOSEPH BERRIGAN.

Witnesses:

WM. H. SIEGMAN, I. A. VAN 'WART.

